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| Mirrors > Home > MPE Home > Th. List > Mathboxes > submateqlem2 | Structured version Visualization version GIF version | ||
| Description: Lemma for submateq 34239. (Contributed by Thierry Arnoux, 26-Aug-2020.) |
| Ref | Expression |
|---|---|
| submateqlem2.n | ⊢ (𝜑 → 𝑁 ∈ ℕ) |
| submateqlem2.k | ⊢ (𝜑 → 𝐾 ∈ (1...𝑁)) |
| submateqlem2.m | ⊢ (𝜑 → 𝑀 ∈ (1...(𝑁 − 1))) |
| submateqlem2.1 | ⊢ (𝜑 → 𝑀 < 𝐾) |
| Ref | Expression |
|---|---|
| submateqlem2 | ⊢ (𝜑 → (𝑀 ∈ (1..^𝐾) ∧ 𝑀 ∈ ((1...𝑁) ∖ {𝐾}))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | fz1ssnn 13596 | . . . . . 6 ⊢ (1...(𝑁 − 1)) ⊆ ℕ | |
| 2 | submateqlem2.m | . . . . . 6 ⊢ (𝜑 → 𝑀 ∈ (1...(𝑁 − 1))) | |
| 3 | 1, 2 | sselid 3936 | . . . . 5 ⊢ (𝜑 → 𝑀 ∈ ℕ) |
| 4 | 3 | nnge1d 12295 | . . . 4 ⊢ (𝜑 → 1 ≤ 𝑀) |
| 5 | submateqlem2.1 | . . . 4 ⊢ (𝜑 → 𝑀 < 𝐾) | |
| 6 | 4, 5 | jca 521 | . . 3 ⊢ (𝜑 → (1 ≤ 𝑀 ∧ 𝑀 < 𝐾)) |
| 7 | 2 | elfzelzd 13565 | . . . 4 ⊢ (𝜑 → 𝑀 ∈ ℤ) |
| 8 | 1zzd 12636 | . . . 4 ⊢ (𝜑 → 1 ∈ ℤ) | |
| 9 | submateqlem2.k | . . . . 5 ⊢ (𝜑 → 𝐾 ∈ (1...𝑁)) | |
| 10 | 9 | elfzelzd 13565 | . . . 4 ⊢ (𝜑 → 𝐾 ∈ ℤ) |
| 11 | elfzo 13702 | . . . 4 ⊢ ((𝑀 ∈ ℤ ∧ 1 ∈ ℤ ∧ 𝐾 ∈ ℤ) → (𝑀 ∈ (1..^𝐾) ↔ (1 ≤ 𝑀 ∧ 𝑀 < 𝐾))) | |
| 12 | 7, 8, 10, 11 | syl3anc 1398 | . . 3 ⊢ (𝜑 → (𝑀 ∈ (1..^𝐾) ↔ (1 ≤ 𝑀 ∧ 𝑀 < 𝐾))) |
| 13 | 6, 12 | mpbird 260 | . 2 ⊢ (𝜑 → 𝑀 ∈ (1..^𝐾)) |
| 14 | 2 | orcd 887 | . . . 4 ⊢ (𝜑 → (𝑀 ∈ (1...(𝑁 − 1)) ∨ 𝑀 = 𝑁)) |
| 15 | submateqlem2.n | . . . . . 6 ⊢ (𝜑 → 𝑁 ∈ ℕ) | |
| 16 | nnuz 12913 | . . . . . 6 ⊢ ℕ = (ℤ≥‘1) | |
| 17 | 15, 16 | eleqtrdi 2875 | . . . . 5 ⊢ (𝜑 → 𝑁 ∈ (ℤ≥‘1)) |
| 18 | fzm1 13648 | . . . . 5 ⊢ (𝑁 ∈ (ℤ≥‘1) → (𝑀 ∈ (1...𝑁) ↔ (𝑀 ∈ (1...(𝑁 − 1)) ∨ 𝑀 = 𝑁))) | |
| 19 | 17, 18 | syl 18 | . . . 4 ⊢ (𝜑 → (𝑀 ∈ (1...𝑁) ↔ (𝑀 ∈ (1...(𝑁 − 1)) ∨ 𝑀 = 𝑁))) |
| 20 | 14, 19 | mpbird 260 | . . 3 ⊢ (𝜑 → 𝑀 ∈ (1...𝑁)) |
| 21 | 3 | nnred 12259 | . . . . 5 ⊢ (𝜑 → 𝑀 ∈ ℝ) |
| 22 | 21, 5 | ltned 11357 | . . . 4 ⊢ (𝜑 → 𝑀 ≠ 𝐾) |
| 23 | nelsn 4634 | . . . 4 ⊢ (𝑀 ≠ 𝐾 → ¬ 𝑀 ∈ {𝐾}) | |
| 24 | 22, 23 | syl 18 | . . 3 ⊢ (𝜑 → ¬ 𝑀 ∈ {𝐾}) |
| 25 | 20, 24 | eldifd 3917 | . 2 ⊢ (𝜑 → 𝑀 ∈ ((1...𝑁) ∖ {𝐾})) |
| 26 | 13, 25 | jca 521 | 1 ⊢ (𝜑 → (𝑀 ∈ (1..^𝐾) ∧ 𝑀 ∈ ((1...𝑁) ∖ {𝐾}))) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ¬ wn 3 → wi 4 ↔ wb 209 ∧ wa 401 ∨ wo 861 = wceq 1570 ∈ wcel 2146 ≠ wne 2960 ∖ cdif 3903 {csn 4591 class class class wbr 5111 ‘cfv 6540 (class class class)co 7416 1c1 11112 < clt 11254 ≤ cle 11255 − cmin 11452 ℕcn 12244 ℤcz 12602 ℤ≥cuz 12874 ...cfz 13547 ..^cfzo 13695 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2148 ax-9 2156 ax-10 2179 ax-11 2195 ax-12 2216 ax-ext 2737 ax-sep 5259 ax-nul 5271 ax-pow 5338 ax-pr 5406 ax-un 7738 ax-cnex 11167 ax-resscn 11168 ax-1cn 11169 ax-icn 11170 ax-addcl 11171 ax-addrcl 11172 ax-mulcl 11173 ax-mulrcl 11174 ax-mulcom 11175 ax-addass 11176 ax-mulass 11177 ax-distr 11178 ax-i2m1 11179 ax-1ne0 11180 ax-1rid 11181 ax-rnegex 11182 ax-rrecex 11183 ax-cnre 11184 ax-pre-lttri 11185 ax-pre-lttrn 11186 ax-pre-ltadd 11187 ax-pre-mulgt0 11188 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 df-mo 2569 df-eu 2599 df-clab 2744 df-cleq 2757 df-clel 2840 df-nfc 2914 df-ne 2961 df-nel 3067 df-ral 3082 df-rex 3092 df-reu 3372 df-rab 3419 df-v 3459 df-sbc 3747 df-csb 3855 df-dif 3909 df-un 3911 df-in 3913 df-ss 3923 df-pss 3926 df-nul 4287 df-if 4490 df-pw 4566 df-sn 4592 df-pr 4594 df-op 4598 df-uni 4875 df-iun 4960 df-br 5112 df-opab 5176 df-mpt 5195 df-tr 5221 df-id 5558 df-eprel 5563 df-po 5571 df-so 5572 df-fr 5616 df-we 5618 df-xp 5669 df-rel 5670 df-cnv 5671 df-co 5672 df-dm 5673 df-rn 5674 df-res 5675 df-ima 5676 df-pred 6306 df-ord 6367 df-on 6368 df-lim 6369 df-suc 6370 df-iota 6496 df-fun 6542 df-fn 6543 df-f 6544 df-f1 6545 df-fo 6546 df-f1o 6547 df-fv 6548 df-riota 7373 df-ov 7419 df-oprab 7420 df-mpo 7421 df-om 7865 df-1st 7988 df-2nd 7989 df-frecs 8280 df-wrecs 8311 df-recs 8360 df-rdg 8399 df-er 8696 df-en 8946 df-dom 8947 df-sdom 8948 df-pnf 11256 df-mnf 11257 df-xr 11258 df-ltxr 11259 df-le 11260 df-sub 11454 df-neg 11455 df-nn 12245 df-n0 12516 df-z 12603 df-uz 12875 df-fz 13548 df-fzo 13696 |
| This theorem is used by: submateq 34239 |
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